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Cisco TelePresence ISDN GW 3241
Easily Integrate Your IP Network and ISDN

Cisco TelePresence ISDN GW 3241
Cisco Products
Cisco TelePresence ISDN Gateway
Cisco ISDN GW 3241 - PRI ISDN H.320 To H.323 Gateway
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The Cisco TelePresence™ portfolio creates an immersive, face-to-face experience over the network-empowering you to collaborate with others like never before. Through a powerful combination of technologies and design that allows you and remote participants to feel as if you are all in the same room, the Cisco TelePresence portfolio has the potential to provide great productivity benefits and transform your business. Many organizations are already using it to control costs, make decisions faster, improve customer intimacy, scale scarce resources, and speed products to market.

The Cisco TelePresence ISDN GW 3241 is a high-capacity and scalable gateway that grows with your business demands. It provides seamless integration between IP and ISDN networks with complete feature transparency, including high definition (HD), enabling organizations using ISDN to enjoy the benefits of HD videoconferencing.

Cisco TelePresence ISDN GW 3241 Diagram

Easily Integrate Your IP Network and ISDN

Enjoy the benefits of high-definition video on your ISDN with the Cisco TelePresence ISDN GW 3241. This scalable, high-capacity gateway:

  • Grows with your business demands
  • Provides transparent communication between all features of IP networks and ISDNs

This automatically operational gateway is easy to use and a powerful tool for your organization. Included are features such as:

  • Standards-based compatibility with all major vendors' endpoints
  • Fully integrated, easily configurable unit with built-in gatekeeper
  • Exceptional dial plans to help ensure that calls are routed efficiently
  • Video resolutions up to high-definition 720p at 30 frames per second
  • Capability for up to 120 voice calls at 64 kbps and up to 60 video calls at 128 kbps

This rack-mountable ISDN gateway is a compact one unit tall. It delivers per-call bandwidth of 56 kbps to 2 Mbps with Advanced Encryption Standard (AES).

In addition, management features include comprehensive remote web management, diagnostics, reporting, and upgrades.

Features and Benefits:

Table summarizes the key features for the Cisco TelePresence ISDN GW 3241, and Table 2 gives interface and call information about the Cisco TelePresence ISDN GW 3241 and Cisco TelePresence ISDN GW 3241-PL models.

Feature Summary
Design features
  • Standards-based and compatible with all major vendors' endpoints
  • Pay as you grow - buy the capacity you need now and a simple license upgrade in the future
  • Easily configurable unit
  • Comprehensive remote Web management
  • Compact size: 1U tall and 19" rack mountable
Application features
  • Provides seamless integration between IP and ISDN devices
  • Fully integrated, with built-in gatekeeper
  • Powerful dial plans ensure that your calls get routed efficiently
  • H.239 and BFCP for presentation sharing capabilities
  • Support for automatic load balancing in multiple gateway environments
Performance features
  • Video resolutions up to High Definition 720p at 30fps
  • Supports up to 4 PRI ISDN ports in a single unit
  • Up to 120 voice calls at 64 Kbps
  • Up to 60 video calls at 128Kbps
  • Bandwidth per call from 56Kbps to 2Mbps
  • AES encryption

Technical Specifications:

Product Specifications
Model T1/E1 ISDN
PRI interfaces
Maximum video calls
384 kbps
Maximum video calls
768 kbps
Maximum voice calls
64 kbps
Cisco TelePresence ISDN GW 3241 Up to 4 PRIs, 1 enabled 15/20 7/10 92/120
Cisco TelePresence ISDN GW 3241-PL 1 additional PRI port license
Product Specifications
Endpoints Supported
  • H.323 IP voice and video endpoints
  • SIP voice and video endpoints
  • H.320 ISDN voice and video endpoints
  • PSTN audio only calls (telephones) through ISDN
Video Standards H.261, H.263, H.263+, H.264
Video Resolution QCIF, QSIF, CIF, SIF, iCIF, iSIF, 288p, 384p, 400p, 448p, VGA, 4CIF, 4SIF, 480p, SVGA, 576p, XGA, 720p
Frame Rates Up to 30 frames per second and 60 fields per second
Audio Standards G.711, G.722, G.722.1, G.728, Polycom Siren14™/G.722.1 Annex C
Other Standards H.323, H.320, H.233, H.234, H.235 (AES), H.239 (dual video), H.221, FTP, RTP, HTTP, HTTPS, DHCP, SNMP, NTP
ISDN Signaling Q.931, NFAS, 4ESS, DMS100 support
ISDN Bonding
  • BONDING (ISO 13871)
  • H.221 aggregation
  • Automatic downspeeding on loss of ISDN B channels
  • H.320/H.323/SIP calls supported up to 2 Mbps
  • Total bandwidth and number of sites supported is limited only by ISDN capacity
Presentation/Data Collaboration Data from H.239 (dual video) of BFCP capable endpoints
Call Routing from ISDN (H.320/PSTN)
  • IVR/auto attendant
  • Direct Inward Dialing (DID)
  • Default (Operator) extension
  • Call routing to MCU/multipoint conference bridge
  • Dialed number digit manipulation
  • Calling party number digit manipulation
  • Flexible dial plan
  • TCS-4 support
Call Routing from IP (H.323/SIP)
  • IVR/auto attendant
  • Dial by E.164 address
  • Dialed number digit manipulation
  • Calling party number digit manipulation
  • Flexible dial plan
  • Dial from MCU with and without a gatekeeper
Embedded Web Server Complete configuration, control and monitoring of the system
Built-in Gatekeeper
  • Resolution of E.164 numbers
  • Registration of endpoints and gateways
  • Up to 25 devices can register
System Management
  • Management via embedded Web server
  • Status through Cisco TelePresence Management Suite
  • RS-232 for local control and diagnostics
  • Syslog for diagnostics
  • Configurable event logs and full H.323 decoding
  • Configuration backup to network
  • Secure upgrades through Ethernet or CompactFlash
  • Call Detail Records downloadable as XML
  • SNMP
Quality of Service
  • Configurable DSCP or TOS/IP precedence
  • H.323 flow control
  • Dynamic jitter buffers
Security Features
  • Two levels of access rights and privileges for users
  • Strong password policy
  • Secure management via HTTPS
  • Dial plan system controls which destinations are reachable
  • Services may be disabled: HTTP, HTTPS, FTP, H.323, SNMP, H.323 GK
  • H.235 authentication for Gatekeeper registration
  • Secure non-PC hardware and operating system
  • AES encryption, 128 bit key, H.233, H.234, H.235
  • TLS certificate verification
  • Certificate-based login with OCSP certificate checking
  • SRTP encryption
  • Second Ethernet port
  • Audit log
Embedded Encryption
  • Standards based on ISDN, IP and mixed ISDN/IP: H.233, H.234, H.235, AES 128 bit key
  • Automatic key generation and exchange
  • Transparent encryption
  • RJ45 ISDN PRI ports
  • 2 x RJ45 Ethernet, 10/100/1000 Mbps full/half duplex, manual or auto sensing
  • RJ45 serial port
  • CompactFlash socket
  • Up to 27 status LEDs
Environmental Data
  • Operating temperature 0°C to 35°C ambient
  • Relative humidity below 95% (non-condensing)
Physical Dimensions
  • Height 1.73", 44 mm (1U)
  • Width 17.2", 437 mm
  • Depth 12.3", 312 mm
  • Weight 9 lbs, 4kg
  • 19" rack mountable (kit supplied) or standalone
  • Power 100-240 VAC, 50/60Hz
  • 110W max power consumption
Regulatory Compliance
  • European safety: EN 60950-1:2001
  • USA safety: UL 60950-1 First Edition
  • Canada safety: CSA 60950-1-03
  • CE Marked
  • EMC:
    - EN55022 class A
    - EN61000-3-2, EN61000-3-3
    - EN55024: EN61000-4-2,-3,-4,-5,-6,-11
    - FCC Part 15 class A
    - VCCI class A
    - AS/NZS 3548 (C-Tick)
    - CCC Approved: GB4943-2001, GB9254-1998
    - YD/T993-1998
  • Telecoms:
    - USA TIA-968-A: October 2002, 47 CFR Part 68: October 2004
    - Canada: IC CS-03, Issue 9, Part VI
    - Europe: ETS 300 046-3,
    - Japan: Ordinance of MPT No 31, 1984
    - China: NAL Certificate
  • RoHS compliant


Download the Cisco TelePresence ISDN GW 3241 Datasheet (PDF).

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Pricing Notes:

Cisco Products
Cisco TelePresence ISDN Gateway
Cisco ISDN GW 3241 - PRI ISDN H.320 To H.323 Gateway
Our Price: Request a Quote